[PATCH 3/6] media: rcar-vin: Fold simple functions into only caller

["Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>]

The two functions rvin_parallel_subdevice_detach() and
rvin_group_cleanup() have been reworked over time and have become
simpler and now only have one call site each.

To make refactoring of the notifier code simpler fold them into their
only call sites.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 .../platform/renesas/rcar-vin/rcar-core.c     | 24 ++++++-------------
 1 file changed, 7 insertions(+), 17 deletions(-)

diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-core.c b/drivers/media/platform/renesas/rcar-vin/rcar-core.c
index 8555fa446811..d8b9c3b991b1 100644
--- a/drivers/media/platform/renesas/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/renesas/rcar-vin/rcar-core.c
@@ -58,12 +58,6 @@
 static DEFINE_MUTEX(rvin_group_lock);
 static struct rvin_group *rvin_group_data;
 
-static void rvin_group_cleanup(struct rvin_group *group)
-{
-	media_device_cleanup(&group->mdev);
-	mutex_destroy(&group->lock);
-}
-
 static int rvin_group_init(struct rvin_group *group, struct rvin_dev *vin)
 {
 	struct media_device *mdev = &group->mdev;
@@ -103,7 +97,8 @@ static void rvin_group_release(struct kref *kref)
 
 	rvin_group_data = NULL;
 
-	rvin_group_cleanup(group);
+	media_device_cleanup(&group->mdev);
+	mutex_destroy(&group->lock);
 
 	kfree(group);
 
@@ -558,15 +553,6 @@ static int rvin_parallel_subdevice_attach(struct rvin_dev *vin,
 	return 0;
 }
 
-static void rvin_parallel_subdevice_detach(struct rvin_dev *vin)
-{
-	rvin_v4l2_unregister(vin);
-	vin->parallel.subdev = NULL;
-
-	if (!vin->info->use_mc)
-		rvin_free_controls(vin);
-}
-
 static int rvin_parallel_notify_complete(struct v4l2_async_notifier *notifier)
 {
 	struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev);
@@ -611,7 +597,11 @@ static void rvin_parallel_notify_unbind(struct v4l2_async_notifier *notifier,
 	vin_dbg(vin, "unbind parallel subdev %s\n", subdev->name);
 
 	mutex_lock(&vin->lock);
-	rvin_parallel_subdevice_detach(vin);
+	rvin_v4l2_unregister(vin);
+	vin->parallel.subdev = NULL;
+
+	if (!vin->info->use_mc)
+		rvin_free_controls(vin);
 	mutex_unlock(&vin->lock);
 }
 
-- 
2.43.0